HEADS UP - memory mapping from msdosfs mounts may deadlock in HEAD for a day or two

From:

Matthew Dillon <dillon@xxxxxxxxxxxxxxxxxxxx>

Date:

Mon, 20 Aug 2007 19:17:28 -0700 (PDT)

I am working on a fix now. The problem is due to a deadlock introduced
by the new getpages and putpages code. I am going to complete the work
to fix the problem instead of committing a hack to fix the problem.
(which is to say, I am going getting rid of the weird page arrays and
tons of code related to them and replace the whole mess with UIO_NOCOPY
I/O).
-Matt
Matthew Dillon
<dillon@backplane.com>